I built the QNX image and flash it on the i.mx35 platform according to the instructions in:
http://community.qnx.com/sf/wiki/do/viewPage/projects.bsp/wiki/Nto640FreescaleI.mx353dsTrunkReleasenotes
(I am still using the RedBoot, haven't replaced it with the IPL)

The problem is that once the QNX is up an running the system doesn't recognize the Ethernet card (en0).
In order to activate the TCP/IP stack I used the command:
io-pkt-v4-hc -dmx35 mac=00e02991234e -ptcpip

But I have only lo0 and not en0, the output of the ifconfig command is:

# ifconfig -a
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 33192
        inet 127.0.0.1 netmask 0xff000000

Can you please help me understand the reason that the Ethernet card is not recognized when the QNX system is up?

Thanks you.